Rotary ventilator



Dec.

Filed Jan. 21. 1922 Patented Dec. i8, i923.

`Unirse stares gli Loan B. snanrnncn, orfnn'raolr, rercnGAn.

Application ledA January- 21, 152221. Serial No. 530,750.

.T 0 all ifi/iam t may concern y Beit known that If, Loan B, Smmrnacn, a

citizen. of the United States of America, re-

siding at Detroit, in theucounty of Vayne and State. of: Michigan, vhave invented cer.

tain new anduseful'lmprovements in Rotary V`\entilat ors, offwhich the followingis a1speciV ed above said; hood by a novelibearing, and' a shell interposed between the rotary7 casing` and said outlet member cooperating` therewith m causingairtoproduce a partial vacuumsoth'at air,ismol;e, gases and;V

foul matten mayl be vdrawn through the ontlet connection and exhausted to the atmos phere.

This invention particularlyrelates to the bearing,4 between the` hood'f of the ventilator and the center pieces which supportsthe rotary casing, and the present invention aims to provide a center bearing wherein antifrictional members are employed to receive lateral and end thrusts and prevent verticaland lateral displacement of the center piece of the casing relative to the hood ol the ventilator.

My invention further aims toprovide antifrictional bearings that may be advantageously used between parts @figa rotary ventilator, and the bearings include a stationary race member, a rotary race member extending into the stationary race member, and anti-rictional members between said stationary and rotary race members. These various members are assembled so as to be protected from the elements and at the same time aiford lubricant wells in which a suitable lubricant may be placed to insure easy turning of the rotary part of the ventilator by wind.

The construction entering into my invention will be hereinafter described and then claimed, and reference will now be had to the drawings, wherein- Figure 1 is a side elevation of a rotary ventilator in accordance with my invention;

Figy 2r is an enlarged vertical sectional view oi' theI bearingA of thev ventilator;

Fig. 3 is a horizontal sectional view taken on the line III-III of Figrf; and

F ig. 4r is a similar view taken onthe line 1j'V--I1V' of Fig.` 2.

In order that the use of mybea'ring may be understood I show in the drawing myrotary ventilator which includes an outlet-connectionl 1 having deflectors 2r and ahood- 3; a; rotary casing 4 having nside wings a shell 6 between the outlet member 1 and the rotary casing''; a spider-7 provided with a vane 8, anda bearing supporting the spider relative to the hood 3.

As mentioned inthe beginning, .my invention resides in an anti-frictional bearing which supports the spider7relative to the stationaryhood 3, and'mounted; on the topV of; the hood 3 is.Y an upstanding cylindrical or hollow center member 9 having its walls provided with a plurality of openings 10.so that the elements cannotv readily lodgewith.- inthe center member. djacentthe` top of' thecenter member 9 'is an annular inwardly projecting stationary racemember 11 have ingan inner annular wall or sleeve'portion 12,; and said race member affordsfannular races 13 and 14, which are rectangular in cross section.

Suitably connected to the spider 7 is a twopart center piece 15 and detachably connected to the center piece 15 is a cylindrical or hollow portion 16 affording a lower race member 17 and an annular race 18 which is rectangular in cross section and confronts the race 13 of the race member 11. The center piece 15 has a coniguration affording an annular groove 19 and an annular race 20 which is rectangular in cross section, said race confronting the race 14 of the stationary race member 11, and the upper end of the stationary race member 11 eX- tends into the annular groove 19 of the center piece 15.

Engaging the races 14 and 20 are a series of anti-trictional members 21 and engaging the races 13 and 18 are a series of anti-frictional members 22, the members 21 and 22 preferably being in the form of balls, as best shown in Figs. 3 and 4L. With the cylindrical portion 16 detachably connected to the center piece 15, preferably by screw threads, the anti-frictional members and r0- by reference `to Fig. 2, it will be noted that,

the anti-rictional members prevent vertical and lateral displacement of the center piece relative to the center member and should there be any side thrust during rotation of the ventilator casing, the bearings will receive such thrust.

The stationary and movable race members are made of a strong and durable material that will withstand the elements, and to insure ease of operation a lubricant can be placed in the race members;

One embodiment of my invention has been' illustrated, but it is to be understood that the structural elements are susceptible to such variations and modications as fall within the scope of the appended claims.

What I claim is Y l l. In a rotary ventilator, a stationary part, a rotary part, means for mounting the rotary part relative to the stationary part, said means comprising anti-frictional bearings constructively arranged above said stationary part and about the aXis of said rotary part adapted to support and prevent vertical and lateral displacement of said rotary part relative to said stationary part, said bearings including three annular race members, two of which extend into the other.

2. An anti-frictional bearing for a rotary ventilator part relative to a stationary ventilator part, comprising a stationary race member, rotary race members connected to gether and extending into said stationary race member, one of said rotary race members having a portion concentric of the other rotary race member, and anti-frictional members between said stationary and rotary race members.V

3; 4'An anti-frictionalbearing for a Vrotary ventilator part relative to a stationary ventilator part, comprising a stationary race member affording upper and lower races rectangular in cross section, rotary race members extending into the races of said stationary race member, and anti-rictional members between said stationary and rotary race members.

4. In a rotary ventilator, a center member, an intermediate Vrace'member carried thereby, a rotary centerpiece having portions above and below said 'race member, and anti-fractional members between said race member and the portions of said center piece. Y

5. A rotary ventilator as in claim 4, wherein the portions of said center piece which are below said race member are detachable relative to said center piece.

6. In a rotary ventilator, a center member, a center piece extending downwardly at the outer and inner sides of said center member, and anti-rictional members interposed between said center member and said center piece, said center member having a connofuration which cooperates with said antirictional members in preventing vertical and lateral displacement of said center piece.

In testimony whereof I aix my signature in presence of two witnesses.

LORD B. SHARPNAC'K.

Witnesses:

ANNA M. Domi, KARL H. BUTLER. 

